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能够自定义电子邮件信头触发垃圾邮件过滤器吗?
原标题:Can custom email headers trigger spam filters?

我们做了很多邮件,我们用Sendgrid来给它提供独特的参数和分类。但是对于存储、归档、过滤和搜索能力,我想给他们一些其他的定制信头,比如这个阵列的json格式。

array( user  => 300,  item  => 8842,  country  =>  Croatia );

现在,这些定制信头有可能伤害我们电子邮件的过路率吗? 换句话说,我们的电子邮件会不会因为有这样的定制信头而触发垃圾邮件过滤器?

最佳回答

用户定义信头的常规是用 X- 将它们前缀。 例如,

X-my-custom-header: foo

长期以来,这一直是电子邮件简况的一部分(见:>https://www.rfc-editor.org/rfc/rfc.822 ),不应伤害你的可交付性。


此外,相关问题:Custom header mail()和垃圾邮件评分

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